How to replace an old gas water heater with a new one

Gas equipment in an apartment or house cannot be connected independently, this creates a danger for the user and neighbors. The installation of the gas column is carried out by technical service workers. In the event of an unauthorized replacement, the owner will receive a fine. In the worst case, an emergency situation may arise.

Gas equipment connection

In apartment buildings, the use of gas for heating water and preparing food is dangerous, therefore It is not allowed to connect the equipment to the gas pipe yourself.

Conditions for getting started after replacement:

• if the column is installed and connected by a specialist of the appropriate qualification, it is necessary commissioning permit and fuel supply;
• gas company employees check the system performance before starting, document the permission.

Collect before installation package of documents. Its composition differs depending on whether the column will be put in the old place or it is planned to move it.

How to make an application, where to go

User applies to the gas management companyserving a home or private sector. Installation of the column in the old place does not require drawing up a project, since the corresponding documents were developed during the initial installation.

In the organization, the owner is two statements:

• to replace models of instantaneous water heater to a new one with installation in the same place;
• to issue a permit to work with city water and gas mains.

If the replacement of the geyser is supposed to be transferred to another place, the network needs to be reorganized. In this case, they order a project and draw up the same papers as during the initial installation.

What you can do yourself

Only licensed and authorized specialists connect gas pipes to any equipment. Owner do it yourself can remove the old heater and attach a new one in its place... Handwritten is allowed connecting it to cold water pipes.

For this you need:

• close the valve at the entrance to the apartment;
• disconnect all speaker connections, remove it from the wall;
• hang up a new kitchen unit.

Before the arrival of the masters categorically the shut-off valve must not be turned on.

Replacing the gas column

There are cases when in a home where the use of a stove is allowed, connection of a gas water heater is not allowed... We are talking about multi-storey buildings over 11 floors.

The rules for installing new and replacing old columns are given in the standards of documents:

• SNiP 42.01 - 2002 "Gas distribution systems";
• SNiP 31.01 - 2003 "Multi-apartment residential buildings";
• SNiP 41.01 - 2003 "Ventilation, heating, air conditioning".

Do not give permission in case of rebuilding the apartment by studio type, when the layout combines the space of a room with a kitchen, as well as in housing without a kitchen and communal apartments.

Replacement frequency

Previously, the norms prescribed the reinstallation of flow-through heaters in 15 years. Government decree No. 720 dated 1997... determined that the columns need to be changed at the end of the service life. This period is indicated by the manufacturer of the units, it is calculated from the date of manufacture.

The owner is responsible for the condition of the gas water heater, compliance with the service life. The replacement time is not specified separately, but the need is maturing if the gasman at the next inspection will document the loss of performance and the impossibility of repair.

What malfunctions need to be changed

Annual maintenance prolongs the operating time, the integrity of the column is affected by the quality of the water.

It is necessary to change the old equipment to the new one when the following malfunctions:

• the water heater stops turning on;
• the main units of the unit fail;

You can also apply for a replacement if the owner wishes to replace the old model with a more advanced one.

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If the equipment is within the warranty period, even in case of a serious breakdown, contact the company that supplied the device. Sometimes a new unit is sent, in which case it is also necessary to agree on a replacement.

Who has the right to carry out the work

Any work on gas supply, piping, installation of tees, placement of valves, signaling device is performed gas service city, district. Another organization that has a documented the right to perform hazardous work.

Before the launch, gas workers are invited to inspect the work done and draw up an act. If happened unauthorized interference during the installation and connection process, the organization that sold the unit will not put it under warranty.

Required documents

The simplest case is if you need to change the unit and put it in its existing place.

The gas service serves documents together with the application:

• a copy of the project, where the location of the water heater is marked, the features of ventilation, water supply and gas supply are indicated;
• technical passport for a new unit;
• chimney inspection report;
• confirmation of ownership of the work area.

If the replacement is combined with a permutation, they order in the gorgaz technical conditions, project based on the conditions of an apartment or house.

Column registration after replacement

On the mounted and connected column to the gas and water mains, draw up commissioning certificate... For registration, a representative of the gas service is invited, who draws up the necessary papers.

The drawing up of the act is combined with the first start-up of the unit. Wherein technical inspector checks:

• correct connection;
• the presence of special hatches for cleaning in the chimney.

Chimney hatches are checked in private homes. In most cases, gas systems in houses were commissioned without such features. When replacing a column, holes must be arranged so that the inspector allows operation.

Acceptance of work

Until 2007, only a note was made in the design documentation about the replacement of gas equipment, but now the act of reinstallation is required. Inspector accepts the job, it determines the compliance and adherence to all installation standards, checks the distance from the outlet to the speaker, takes into account the height to the ceiling, from the floor, the type of wall.

If the smoke from the column is discharged into the chimney, the presence of artificial draft in the hood is investigated in order not to get the combustion products sucked back. Inspector checks correspondence of the diameters of the gas outlet pipe and the outlet of the column.

Fraudulent activities

With unauthorized intervention and the start of work without an acceptance certificate, the installation is recognized as unauthorized, and under the terms of the contract between the gas supplier and the user, the owner will be imposed fine.

If, as a result of the health, life of others, their property, damage is caused, for the owner of the house, who has allowed unauthorized connection and replacement of the device, comes criminal liability.

A fine is punishable by fraudulent installation of a gas water heater and gasification of a house, summer house, apartment bypassing the gas meter.

The order of work

On the wall they mark column installation location, then drill holes, fix the device with hardware, which is chosen depending on the wall material.

Further order:

• checking the draft before installing the chimney;
• gas pipe or reinforced hose connection to the water heater;
• connection of a cold water supply pipe;
• connecting the DHW line for parsing.

After that, install chimney, conduct a system performance test. A unit with additional surface protection is mounted on wooden walls.

Dismantling the old column

Close the valve at the entrance, unscrew the gas hose connection, then shut off the cold water supply.

Next steps:

• turn off the hot water pipe leaving the column;
• remove the chimney connection pipe;
• the unit is removed from the wall.

Check old hoses, tees, fittings. If they become unusable, they acquire new ones. If taps were not installed for supplying cold water and distributing hot water, it is better to put them when installing the column.

Installing a new

Dismantling operations are repeated in reverse order. Regulate the water pressure in accordance with the capacity of the unit.

Follow the rules:

• do not lay electrical wires over the column;
• the length of the pipe from the branch pipe to the entrance to the chimney - no more than three meters;
• there should be no more than two turns in the exhaust manifold, so as not to reduce traction.

Shut-off valve, gas connection is performed by a gasman. Check for leaks by opening the inlet valve. The joints are lubricated with soapy water, paying attention to bubbles.

Connection and configuration

To connect gas, use flexible rubber hose, one end of it is attached to the column, the other is connected to the source. Rubber pipes with textile reinforcement with thread, sleeves with a metal braid and a metal-plastic core, bellows steel hoses are allowed.

The setting is performed according to individual indicators each model. Automatic ones adjust the pressure themselves, and mechanical types are regulated by a toggle switch. Do not recommend set heating temperature over + 55 ° Сso as not to mix the hot water coming out with cold water (harmful to the unit).

Safety system

Increased gas pollution in the room threatens with poisoning or explosion, therefore, they establish gas sensor. The device signals the excess of the concentration of the gas mixture in the atmosphere by sound and light signal. There are automatic models that simultaneously transmit a signal about the threat of an accident to the dispatcher's console, turn off the gas supply to the home.

The law allows you to hide the gas water heater in the kitchen under the decorationbut the panel should be easily removable. In private houses, there must be a small window in the window to ventilate the room in winter. Completely blind openings in the kitchen are prohibited.

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In recent years, it is impossible to install instantaneous gas heaters in the bathroom. If from previous years such an arrangement has been preserved, then under the new conditions it will be necessary to transfer the column to the kitchen in case of replacement.